ANOVA Analysis of Variance True or False 1 ANOVA is used to
ANOVA (Analysis of Variance) True or False:
1) ANOVA is used to compare 2 or more qualitative variables
2) The ANOVA test assumes sampling from normal populations with equal variances.
3) For ANOVA, if you reject the null hypothesis, then you know that all the means are significantly different from each other.
4) The F distribution is symmetric around a mean of zero
5) In an ANOVA table, \'mean square error\' measures a treatment effect
Solution
ANOVA (Analysis of Variance) True or False:
1) ANOVA is used to compare 2 or more qualitative variables
False, ANOVA is used to compare 2 or more quantitative variables
2) The ANOVA test assumes sampling from normal populations with equal variances.
True
3) For ANOVA, if you reject the null hypothesis, then you know that all the means are significantly different from each other.
False, for ANOVA, if you reject the null hypothesis, then you know that at least one mean is significantly different from others.
4) The F distribution is symmetric around a mean of zero
False, the F distribution is skewed to right.
5) In an ANOVA table, \'mean square error\' measures a treatment effect
False, in an ANOVA table, \'mean square treatment\' measures a treatment effect
